Compilare: main.cpp: In function 'int main()': main.cpp:34:18: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(j=0;j<strlen(c);j++) | ~^~~~~~~~~~ main.cpp:44:22: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 44 | for(j=0;j<strlen(c);j++) | ~^~~~~~~~~~ main.cpp:75:28: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 75 | for(j=pozitie;j<strlen(c);j++) | ~^~~~~~~~~~ main.cpp:77:35: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 77 | if(c[j]=='+' || (j==strlen(c)-1)) | ~^~~~~~~~~~~~~ main.cpp:79:25: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 79 | if(j==strlen(c)-1) | ~^~~~~~~~~~~~~ main.cpp:105:18: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 105 | for(q=0;q<strlen(c);q++) | ~^~~~~~~~~~ main.cpp:119:26: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 119 | for(j=0;j<strlen(mat[i]);j++) | ~^~~~~~~~~~~~~~~ main.cpp:139:26: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 139 | for(j=0;j<strlen(mat[i]);j++) | ~^~~~~~~~~~~~~~~ main.cpp:171:30: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 171 | for(j=0;j<strlen(mat[i]);j++) | ~^~~~~~~~~~~~~~~ main.cpp:174:30: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 174 | for(j=0;j<strlen(c2);j++) | ~^~~~~~~~~~~ main.cpp:176:44: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 176 | if(c2[j]=='+' || (j==strlen(c2)-1 && nrplus==0) || c2[j]=='=') | ~^~~~~~~~~~~~~~ main.cpp:138:21: warning: unused variable 'pozitie' [-Wunused-variable] 138 | int pozitie; | ^~~~~~~ main.cpp:172:40: warning: 'poz2' may be used uninitialized [-Wmaybe-uninitialized] 172 | if(j<=poz1 || j>poz2) | ~^~~~~ main.cpp:116:26: note: 'poz2' was declared here 116 | int poz1,poz2; | ^~~~ main.cpp:172:29: warning: 'poz1' may be used uninitialized [-Wmaybe-uninitialized] 172 | if(j<=poz1 || j>poz2) | ~^~~~~~ main.cpp:116:21: note: 'poz1' was declared here 116 | int poz1,poz2; | ^~~~