Compilare: main.cpp: In function 'int main()': main.cpp:26:5: warning: this 'else' clause does not guard... [-Wmisleading-indentation] else s+=x;if(maxs<s) maxs=s,first=id,last=i; ^~~~ main.cpp:26:15: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else' else s+=x;if(maxs<s) maxs=s,first=id,last=i; ^~ main.cpp:20:34: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, 200000, stdin); ^ main.cpp: In function 'void read(int&)': main.cpp:10:136: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] while(buff[pos] < '0' || buff[pos] > '9'){if(buff[pos]== '-' )semn = -1; if(++pos == 200000) fread(buff, 1, 200000, stdin), pos = 0;} ^ main.cpp:12:139: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] while('0' <= buff[pos] && buff[pos] <= '9') {nr = nr * 10 + buff[pos] - '0';if(++pos == 200000) fread(buff, 1, 200000, stdin), pos = 0;} ^